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pigweed/third_party/android/platform/external/perfetto/6cbee6112dd6eadee119b91808ca28b376b36ea2
commit
6cbee6112dd6eadee119b91808ca28b376b36ea2
[log]
author
Alexander Timin <altimin@chromium.org>
Mon Oct 17 18:49:03 2022 +0000
committer
Alexander Timin <altimin@google.com>
Mon Oct 17 18:51:07 2022 +0000
tree
a1f447553267c1ead5e18a91fd108da8fddde68b
parent
c2bb1b46f4539305424e6ff18c7c1238f41505f5 [diff]
Switch base::FlatHashMap to base::Hash

std::hash is just identity function for ints, which leads to bad
performance for open-addressing hash tables like base::FlatHashMap.

Switch to using base::Hash which more uniformly distributes enthropy
across bits of ints.

R=lalitm@google.com

Change-Id: I7ec9f41b6960c6a0aed73f7d1d316fe7e98ca07e
1 file changed
tree: a1f447553267c1ead5e18a91fd108da8fddde68b
  1. .github/
  2. bazel/
  3. build_overrides/
  4. buildtools/
  5. debian/
  6. docs/
  7. examples/
  8. gn/
  9. include/
  10. infra/
  11. protos/
  12. python/
  13. src/
  14. test/
  15. tools/
  16. ui/
  17. .clang-format
  18. .clang-tidy
  19. .gitattributes
  20. .gitignore
  21. .gn
  22. .style.yapf
  23. Android.bp
  24. Android.bp.extras
  25. BUILD
  26. BUILD.extras
  27. BUILD.gn
  28. CHANGELOG
  29. codereview.settings
  30. DIR_METADATA
  31. heapprofd.rc
  32. LICENSE
  33. meson.build
  34. METADATA
  35. MODULE_LICENSE_APACHE2
  36. OWNERS
  37. perfetto.rc
  38. PerfettoIntegrationTests.xml
  39. PRESUBMIT.py
  40. README.chromium
  41. README.md
  42. TEST_MAPPING
  43. traced_perf.rc
  44. WORKSPACE
README.md

Perfetto - System profiling, app tracing and trace analysis

Perfetto is a production-grade open-source stack for performance instrumentation and trace analysis. It offers services and libraries and for recording system-level and app-level traces, native + java heap profiling, a library for analyzing traces using SQL and a web-based UI to visualize and explore multi-GB traces.

See https://perfetto.dev/docs or the /docs/ directory for documentation.